高灵敏稀土显色剂偶氮氯膦mA光度法在铝合金测定中的应用

• 作 者: 关秀英
• 机 构: 天津机车车辆机械工厂,
• 出 处: 机车车辆工艺
• 发表日期: 1986年05期
• 关键词: 偶氮胂Ⅲ mA 工业纯铝 抗坏血酸溶液 机车车辆 磺基水杨酸溶液 标液 显色方法 最大吸收 盐酸介质

近年来,由于工业纯铝中含有0.2％左右的稀土,为了解含稀土铝合金的机械性能,有的机车车辆工厂提出测定铝合金中稀土的要求。过去报道稀土分析方法虽多,但大部分都是用以测定钢铁中稀土的。关于铝合金中稀土的测定,现有的单位是应用偶氮胂Ⅲ显色方法。

In recent years, due to industrial pure aluminum containing about 0.2% of rare earth, in order to understand the mechanical properties of rare earth-containing aluminum alloy, some locomotives and rolling stock factory proposed determination of rare earths in aluminum alloy requirements. Although rare earth analysis methods have been reported in the past, most of them are used for the determination of rare earths in steel. About the determination of rare earths in aluminum alloys, the existing unit is the application of arsenazo Ⅲ chromogenic method.